It’s on right now! NBC Sports channel, though I think you can also stream it online.
It looks warm in Boston today. 
I wish I could watch it, but instead I am tracking several friends running it. It’s a fun diversion during the workday to see how people are doing. I hope everyone deals with the heat OK.
^^yes I bet that is fun!!!
Kiplagat solidly in lead for elite women. Getting close to the finish.
Kirui wins for elite men. Galen Rupp with a very solid 2nd place and a PR. =D>
The live feed I was watching went black just as Kirui was approaching the finish line, grr!
Oh no, need a “dislike” button @MaineLonghorn!
Meb just finished . . . this was his last Boston. :’(
I rode my bike over to the starting line this morning. It’s warm today, around 70. But there is a good wind out to keep it cooler. Sun is out though. It’s a nice New England spring day.
^Oh, I didn’t know that!
Meb’s last competitive marathon. Jordan Hasay was third in her debut marathon. Terrific!
Meb is such an awesome person! It was an honor to run in the race where he won. 
I have several friends racing today. One friend has run the last 6 of 7 races, and I think 15 in total. Impressive. As you get older it seems harder to hold your body together to run marathons.